During the launch, Mr Roberts will announce that covert speed camera vehicles will be deployed on Queensland's roads for the first time from Thursday to coincide with the busy Easter long weekend.

Unmarked police motorcycles will also be deployed.

He said up to 30 per cent of mobile speed camera enforcement would now be undertaken covertly.

"There is clear evidence which shows that increasing the chance and uncertainty of detection is a powerful motivator in changing peoples' driving habits," Mr Roberts said.

"With covert speed cameras now on the roads, motorists will need to consider whether a vehicle parked on the side of the road is fitted with a speed camera, or if the motorcycle they are speeding past is a police motorcycle."

Mr Roberts said while there had been 36 fewer road deaths this year compared to 2009, no one should be complacent.

"We cannot afford to rest on our laurels. Last year 16 people died on our roads during the two-week Easter period and plenty more received serious injuries in road crashes.

"My plea to the people of Queensland is slow down, don't drink and drive, wear your seatbelt and concentrate when driving."